FVXX20 KWBC 171708 VOLCANIC ASH ADVISORY ISSUE: 2003JUL17/1700Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/600 INFORMATION SOURCE: GOES-12 IMAGERY. MONTSERRAT VOLCANO OBSERVATORY. ERUPTION DETAILS: ACTIVITY HAS QUIETED DOWN FOR NOW. OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: FAINT ASH/STEAM PLUME FROM THIS MORNING HAS DISSIPATED. THE MONTSERRAT VOLCANO OBSERVATORY HAS INDICATED THAT SEISMIC ACTIVITY HAS GREATLY DECREASED AND SKIES HAVE BEEN VERY CLEAR WITH NO ASH VISIBLE EMANATING FROM THE SUMMIT SCAR SINCE EARLY THIS MORNING. HOWEVER...THEY DID INDICATE CONCERN FOR POSSIBLE LARGE ERUPTIONS OVER THE COMING WEEKS...SO IT WOULD BE ADVISED TO KEEP CLEAR OF THE ISLAND AT THIS TIME. WILL CONTINUE TO MONITOR THE SITUATION CAREFULLY...GALLINA NEXT ADVISORY: NO FURTHER ADVISORIES. NNNN